Electronics
Material (for each):
- wood for the frame
- 1 arduino
- 8 WS2812
- 8 small buttons
- 1 big button with led integrated (like http://is.alicdn.com/img/pb/738/214/848/848214738_785.jpg)
The arduino has:
- 1 output for the WS2812
- 1 output for the big button led
- 9 button input
If some problem occurs check the connections at the back of the panel, sometimes wires disconnect. If the leds are becoming crazy or a button doesn't work, check the Ground connection
We have 8 independent led strips, leading to 24 wires.
For practical reasons, we use a plastic junction box enclosure to "securely" host all the connections to the arduino (and the arduino).
Only 9 cables go out of the box :
- 8 connections to the stripes
- 1 usb to control the arduino
For the connection to the stripes, we use some jack sound connectors because they are ubiquitous, cheap and can host 3 cables. To wiring is like that:
The restart button is a regular electrical switch. It needs to be plugged on an arduino between pin 2 and GND.